and female. The silk hands earn about 12s. or 15s.

_Petrifaction Manufactory._

A manufactory, at once local and elegant, exists at Derby, which excites
the attention and loosens the purse-strings of most strangers. It is the
spar-manufactory of Mr. Hall, and in it, he converts the petrified sports
of nature, in the Derbyshire hills, into the luxuries of civil life.
Those in London, who desire to see the products of these works, may
behold them at Mawe's, in the Strand; but all, who visit Derby, will not
fail to call upon Mr. Hall, who is as courteous as he is ingenious.
Amythistine and other spars, white and variegated marble, alabaster, &c.
are here formed in a series of workshops, aided by a steam engine, into
vases, columns, obelisks, &c. &c. Tasteful statuaries are also employed,
in converting the same materials into dogs, horses, sheep, cows, &c. for
chimney ornaments; and Mr. Hall has likewise imitated the best vases, and
some of the structures of Egypt, with exact transcripts of their
inscriptions. In these works, in polishing, sawing, fashioning, &c. he
employs numerous hands; and persons, whom he may indulge, with a view of
the details, will be instructed and gratified.

_The Arkwrights_.

Cromford is an immense establishment; but being inferior in magnitude to
Belper, and of the same description, I forbear to enlarge upon it. Here
the late Sir Richard Arkwright established the first cotton-spinning
mill, and from the poverty of a barber's apprentice, became one of the
wealthiest merchants in the united kingdom. The concern is now carried on
by his son, and I found that his work-people were in the same state of
comfort, as those of the Messrs. Strutt.